To: vim_dev@googlegroups.com
Subject: Patch 8.1.0374
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
------------

Patch 8.1.0374
Problem:    Moving the cursor is slow when 'relativenumber' is set.
Solution:   Only redraw the number column, not all lines.
Files:	    src/screen.c, src/move.c


*** ../vim-8.1.0373/src/screen.c	2018-09-12 21:52:14.323799725 +0200
--- src/screen.c	2018-09-12 23:09:41.244578629 +0200
***************
*** 132,138 ****
  static void fill_foldcolumn(char_u *p, win_T *wp, int closed, linenr_T lnum);
  static void copy_text_attr(int off, char_u *buf, int len, int attr);
  #endif
! static int win_line(win_T *, linenr_T, int, int, int nochange);
  static int char_needs_redraw(int off_from, int off_to, int cols);
  static void draw_vsep_win(win_T *wp, int row);
  #ifdef FEAT_STL_OPT
--- 132,138 ----
  static void fill_foldcolumn(char_u *p, win_T *wp, int closed, linenr_T lnum);
  static void copy_text_attr(int off, char_u *buf, int len, int attr);
  #endif
! static int win_line(win_T *, linenr_T, int, int, int nochange, int number_only);
  static int char_needs_redraw(int off_from, int off_to, int cols);
  static void draw_vsep_win(win_T *wp, int row);
  #ifdef FEAT_STL_OPT
***************
*** 971,977 ****
  		start_search_hl();
  		prepare_search_hl(wp, lnum);
  # endif
! 		win_line(wp, lnum, row, row + wp->w_lines[j].wl_size, FALSE);
  # if defined(FEAT_SEARCH_EXTRA)
  		end_search_hl();
  # endif
--- 971,978 ----
  		start_search_hl();
  		prepare_search_hl(wp, lnum);
  # endif
! 		win_line(wp, lnum, row, row + wp->w_lines[j].wl_size,
! 								 FALSE, FALSE);
  # if defined(FEAT_SEARCH_EXTRA)
  		end_search_hl();
  # endif
***************
*** 1881,1887 ****
  	/*
  	 * Update a line when it is in an area that needs updating, when it
  	 * has changes or w_lines[idx] is invalid.
! 	 * bot_start may be halfway a wrapped line after using
  	 * win_del_lines(), check if the current line includes it.
  	 * When syntax folding is being used, the saved syntax states will
  	 * already have been updated, we can't see where the syntax state is
--- 1882,1888 ----
  	/*
  	 * Update a line when it is in an area that needs updating, when it
  	 * has changes or w_lines[idx] is invalid.
! 	 * "bot_start" may be halfway a wrapped line after using
  	 * win_del_lines(), check if the current line includes it.
  	 * When syntax folding is being used, the saved syntax states will
  	 * already have been updated, we can't see where the syntax state is
***************
*** 2140,2146 ****
  		/*
  		 * Display one line.
  		 */
! 		row = win_line(wp, lnum, srow, wp->w_height, mod_top == 0);
  
  #ifdef FEAT_FOLDING
  		wp->w_lines[idx].wl_folded = FALSE;
--- 2141,2148 ----
  		/*
  		 * Display one line.
  		 */
! 		row = win_line(wp, lnum, srow, wp->w_height,
! 							  mod_top == 0, FALSE);
  
  #ifdef FEAT_FOLDING
  		wp->w_lines[idx].wl_folded = FALSE;
***************
*** 2177,2183 ****
  	}
  	else
  	{
! 	    /* This line does not need updating, advance to the next one */
  	    row += wp->w_lines[idx++].wl_size;
  	    if (row > wp->w_height)	/* past end of screen */
  		break;
--- 2179,2192 ----
  	}
  	else
  	{
! 	    if (wp->w_p_rnu)
! 	    {
! 		// 'relativenumber' set: The text doesn't need to be drawn, but
! 		// the number column nearly always does.
! 		(void)win_line(wp, lnum, srow, wp->w_height, TRUE, TRUE);
! 	    }
! 
! 	    // This line does not need to be drawn, advance to the next one.
  	    row += wp->w_lines[idx++].wl_size;
  	    if (row > wp->w_height)	/* past end of screen */
  		break;
***************
*** 3058,3064 ****
      linenr_T	lnum,
      int		startrow,
      int		endrow,
!     int		nochange UNUSED)	/* not updating for changed text */
  {
      int		col = 0;		/* visual column on screen */
      unsigned	off;			/* offset in ScreenLines/ScreenAttrs */
--- 3067,3074 ----
      linenr_T	lnum,
      int		startrow,
      int		endrow,
!     int		nochange UNUSED,	// not updating for changed text
!     int		number_only)		// only update the number column
  {
      int		col = 0;		/* visual column on screen */
      unsigned	off;			/* offset in ScreenLines/ScreenAttrs */
***************
*** 3253,3464 ****
      row = startrow;
      screen_row = row + W_WINROW(wp);
  
!     /*
!      * To speed up the loop below, set extra_check when there is linebreak,
!      * trailing white space and/or syntax processing to be done.
!      */
  #ifdef FEAT_LINEBREAK
!     extra_check = wp->w_p_lbr;
  #else
!     extra_check = 0;
  #endif
  #ifdef FEAT_SYN_HL
!     if (syntax_present(wp) && !wp->w_s->b_syn_error
  # ifdef SYN_TIME_LIMIT
! 	    && !wp->w_s->b_syn_slow
  # endif
!        )
!     {
! 	/* Prepare for syntax highlighting in this line.  When there is an
! 	 * error, stop syntax highlighting. */
! 	save_did_emsg = did_emsg;
! 	did_emsg = FALSE;
! 	syntax_start(wp, lnum);
! 	if (did_emsg)
! 	    wp->w_s->b_syn_error = TRUE;
! 	else
  	{
! 	    did_emsg = save_did_emsg;
  #ifdef SYN_TIME_LIMIT
! 	    if (!wp->w_s->b_syn_slow)
  #endif
! 	    {
! 		has_syntax = TRUE;
! 		extra_check = TRUE;
  	    }
  	}
-     }
  
!     /* Check for columns to display for 'colorcolumn'. */
!     color_cols = wp->w_p_cc_cols;
!     if (color_cols != NULL)
! 	draw_color_col = advance_color_col(VCOL_HLC, &color_cols);
  #endif
  
  #ifdef FEAT_TERMINAL
!     if (term_show_buffer(wp->w_buffer))
!     {
! 	extra_check = TRUE;
! 	get_term_attr = TRUE;
! 	term_attr = term_get_attr(wp->w_buffer, lnum, -1);
!     }
  #endif
  
  #ifdef FEAT_SPELL
!     if (wp->w_p_spell
! 	    && *wp->w_s->b_p_spl != NUL
! 	    && wp->w_s->b_langp.ga_len > 0
! 	    && *(char **)(wp->w_s->b_langp.ga_data) != NULL)
!     {
! 	/* Prepare for spell checking. */
! 	has_spell = TRUE;
! 	extra_check = TRUE;
! 
! 	/* Get the start of the next line, so that words that wrap to the next
! 	 * line are found too: "et<line-break>al.".
! 	 * Trick: skip a few chars for C/shell/Vim comments */
! 	nextline[SPWORDLEN] = NUL;
! 	if (lnum < wp->w_buffer->b_ml.ml_line_count)
  	{
! 	    line = ml_get_buf(wp->w_buffer, lnum + 1, FALSE);
! 	    spell_cat_line(nextline + SPWORDLEN, line, SPWORDLEN);
! 	}
! 
! 	/* When a word wrapped from the previous line the start of the current
! 	 * line is valid. */
! 	if (lnum == checked_lnum)
! 	    cur_checked_col = checked_col;
! 	checked_lnum = 0;
  
! 	/* When there was a sentence end in the previous line may require a
! 	 * word starting with capital in this line.  In line 1 always check
! 	 * the first word. */
! 	if (lnum != capcol_lnum)
! 	    cap_col = -1;
! 	if (lnum == 1)
! 	    cap_col = 0;
! 	capcol_lnum = 0;
!     }
  #endif
  
!     /*
!      * handle visual active in this window
!      */
!     fromcol = -10;
!     tocol = MAXCOL;
!     if (VIsual_active && wp->w_buffer == curwin->w_buffer)
!     {
! 					/* Visual is after curwin->w_cursor */
! 	if (LTOREQ_POS(curwin->w_cursor, VIsual))
! 	{
! 	    top = &curwin->w_cursor;
! 	    bot = &VIsual;
! 	}
! 	else				/* Visual is before curwin->w_cursor */
! 	{
! 	    top = &VIsual;
! 	    bot = &curwin->w_cursor;
! 	}
! 	lnum_in_visual_area = (lnum >= top->lnum && lnum <= bot->lnum);
! 	if (VIsual_mode == Ctrl_V)	/* block mode */
  	{
! 	    if (lnum_in_visual_area)
  	    {
! 		fromcol = wp->w_old_cursor_fcol;
! 		tocol = wp->w_old_cursor_lcol;
  	    }
! 	}
! 	else				/* non-block mode */
! 	{
! 	    if (lnum > top->lnum && lnum <= bot->lnum)
! 		fromcol = 0;
! 	    else if (lnum == top->lnum)
  	    {
! 		if (VIsual_mode == 'V')	/* linewise */
! 		    fromcol = 0;
! 		else
  		{
! 		    getvvcol(wp, top, (colnr_T *)&fromcol, NULL, NULL);
! 		    if (gchar_pos(top) == NUL)
! 			tocol = fromcol + 1;
  		}
  	    }
! 	    if (VIsual_mode != 'V' && lnum == bot->lnum)
  	    {
! 		if (*p_sel == 'e' && bot->col == 0
! #ifdef FEAT_VIRTUALEDIT
! 			&& bot->coladd == 0
! #endif
! 		   )
  		{
! 		    fromcol = -10;
! 		    tocol = MAXCOL;
  		}
! 		else if (bot->col == MAXCOL)
! 		    tocol = MAXCOL;
! 		else
  		{
! 		    pos = *bot;
! 		    if (*p_sel == 'e')
! 			getvvcol(wp, &pos, (colnr_T *)&tocol, NULL, NULL);
  		    else
  		    {
! 			getvvcol(wp, &pos, NULL, NULL, (colnr_T *)&tocol);
! 			++tocol;
  		    }
  		}
  	    }
- 	}
  
! 	/* Check if the character under the cursor should not be inverted */
! 	if (!highlight_match && lnum == curwin->w_cursor.lnum && wp == curwin
  #ifdef FEAT_GUI
! 		&& !gui.in_use
  #endif
! 		)
! 	    noinvcur = TRUE;
  
! 	/* if inverting in this line set area_highlighting */
! 	if (fromcol >= 0)
! 	{
! 	    area_highlighting = TRUE;
! 	    attr = HL_ATTR(HLF_V);
  #if defined(FEAT_CLIPBOARD) && defined(FEAT_X11)
! 	    if ((clip_star.available && !clip_star.owned
! 						     && clip_isautosel_star())
! 		    || (clip_plus.available && !clip_plus.owned
! 						    && clip_isautosel_plus()))
! 		attr = HL_ATTR(HLF_VNC);
  #endif
  	}
-     }
  
!     /*
!      * handle 'incsearch' and ":s///c" highlighting
!      */
!     else if (highlight_match
! 	    && wp == curwin
! 	    && lnum >= curwin->w_cursor.lnum
! 	    && lnum <= curwin->w_cursor.lnum + search_match_lines)
!     {
! 	if (lnum == curwin->w_cursor.lnum)
! 	    getvcol(curwin, &(curwin->w_cursor),
! 					     (colnr_T *)&fromcol, NULL, NULL);
! 	else
! 	    fromcol = 0;
! 	if (lnum == curwin->w_cursor.lnum + search_match_lines)
! 	{
! 	    pos.lnum = lnum;
! 	    pos.col = search_match_endcol;
! 	    getvcol(curwin, &pos, (colnr_T *)&tocol, NULL, NULL);
  	}
- 	else
- 	    tocol = MAXCOL;
- 	/* do at least one character; happens when past end of line */
- 	if (fromcol == tocol)
- 	    tocol = fromcol + 1;
- 	area_highlighting = TRUE;
- 	attr = HL_ATTR(HLF_I);
      }
  
  #ifdef FEAT_DIFF
--- 3263,3477 ----
      row = startrow;
      screen_row = row + W_WINROW(wp);
  
!     if (!number_only)
!     {
! 	/*
! 	 * To speed up the loop below, set extra_check when there is linebreak,
! 	 * trailing white space and/or syntax processing to be done.
! 	 */
  #ifdef FEAT_LINEBREAK
! 	extra_check = wp->w_p_lbr;
  #else
! 	extra_check = 0;
  #endif
  #ifdef FEAT_SYN_HL
! 	if (syntax_present(wp) && !wp->w_s->b_syn_error
  # ifdef SYN_TIME_LIMIT
! 		&& !wp->w_s->b_syn_slow
  # endif
! 	   )
  	{
! 	    /* Prepare for syntax highlighting in this line.  When there is an
! 	     * error, stop syntax highlighting. */
! 	    save_did_emsg = did_emsg;
! 	    did_emsg = FALSE;
! 	    syntax_start(wp, lnum);
! 	    if (did_emsg)
! 		wp->w_s->b_syn_error = TRUE;
! 	    else
! 	    {
! 		did_emsg = save_did_emsg;
  #ifdef SYN_TIME_LIMIT
! 		if (!wp->w_s->b_syn_slow)
  #endif
! 		{
! 		    has_syntax = TRUE;
! 		    extra_check = TRUE;
! 		}
  	    }
  	}
  
! 	/* Check for columns to display for 'colorcolumn'. */
! 	color_cols = wp->w_p_cc_cols;
! 	if (color_cols != NULL)
! 	    draw_color_col = advance_color_col(VCOL_HLC, &color_cols);
  #endif
  
  #ifdef FEAT_TERMINAL
! 	if (term_show_buffer(wp->w_buffer))
! 	{
! 	    extra_check = TRUE;
! 	    get_term_attr = TRUE;
! 	    term_attr = term_get_attr(wp->w_buffer, lnum, -1);
! 	}
  #endif
  
  #ifdef FEAT_SPELL
! 	if (wp->w_p_spell
! 		&& *wp->w_s->b_p_spl != NUL
! 		&& wp->w_s->b_langp.ga_len > 0
! 		&& *(char **)(wp->w_s->b_langp.ga_data) != NULL)
  	{
! 	    /* Prepare for spell checking. */
! 	    has_spell = TRUE;
! 	    extra_check = TRUE;
  
! 	    /* Get the start of the next line, so that words that wrap to the next
! 	     * line are found too: "et<line-break>al.".
! 	     * Trick: skip a few chars for C/shell/Vim comments */
! 	    nextline[SPWORDLEN] = NUL;
! 	    if (lnum < wp->w_buffer->b_ml.ml_line_count)
! 	    {
! 		line = ml_get_buf(wp->w_buffer, lnum + 1, FALSE);
! 		spell_cat_line(nextline + SPWORDLEN, line, SPWORDLEN);
! 	    }
! 
! 	    /* When a word wrapped from the previous line the start of the current
! 	     * line is valid. */
! 	    if (lnum == checked_lnum)
! 		cur_checked_col = checked_col;
! 	    checked_lnum = 0;
! 
! 	    /* When there was a sentence end in the previous line may require a
! 	     * word starting with capital in this line.  In line 1 always check
! 	     * the first word. */
! 	    if (lnum != capcol_lnum)
! 		cap_col = -1;
! 	    if (lnum == 1)
! 		cap_col = 0;
! 	    capcol_lnum = 0;
! 	}
  #endif
  
! 	/*
! 	 * handle visual active in this window
! 	 */
! 	fromcol = -10;
! 	tocol = MAXCOL;
! 	if (VIsual_active && wp->w_buffer == curwin->w_buffer)
  	{
! 					    /* Visual is after curwin->w_cursor */
! 	    if (LTOREQ_POS(curwin->w_cursor, VIsual))
  	    {
! 		top = &curwin->w_cursor;
! 		bot = &VIsual;
  	    }
! 	    else				/* Visual is before curwin->w_cursor */
  	    {
! 		top = &VIsual;
! 		bot = &curwin->w_cursor;
! 	    }
! 	    lnum_in_visual_area = (lnum >= top->lnum && lnum <= bot->lnum);
! 	    if (VIsual_mode == Ctrl_V)	/* block mode */
! 	    {
! 		if (lnum_in_visual_area)
  		{
! 		    fromcol = wp->w_old_cursor_fcol;
! 		    tocol = wp->w_old_cursor_lcol;
  		}
  	    }
! 	    else				/* non-block mode */
  	    {
! 		if (lnum > top->lnum && lnum <= bot->lnum)
! 		    fromcol = 0;
! 		else if (lnum == top->lnum)
  		{
! 		    if (VIsual_mode == 'V')	/* linewise */
! 			fromcol = 0;
! 		    else
! 		    {
! 			getvvcol(wp, top, (colnr_T *)&fromcol, NULL, NULL);
! 			if (gchar_pos(top) == NUL)
! 			    tocol = fromcol + 1;
! 		    }
  		}
! 		if (VIsual_mode != 'V' && lnum == bot->lnum)
  		{
! 		    if (*p_sel == 'e' && bot->col == 0
! #ifdef FEAT_VIRTUALEDIT
! 			    && bot->coladd == 0
! #endif
! 		       )
! 		    {
! 			fromcol = -10;
! 			tocol = MAXCOL;
! 		    }
! 		    else if (bot->col == MAXCOL)
! 			tocol = MAXCOL;
  		    else
  		    {
! 			pos = *bot;
! 			if (*p_sel == 'e')
! 			    getvvcol(wp, &pos, (colnr_T *)&tocol, NULL, NULL);
! 			else
! 			{
! 			    getvvcol(wp, &pos, NULL, NULL, (colnr_T *)&tocol);
! 			    ++tocol;
! 			}
  		    }
  		}
  	    }
  
! 	    /* Check if the character under the cursor should not be inverted */
! 	    if (!highlight_match && lnum == curwin->w_cursor.lnum && wp == curwin
  #ifdef FEAT_GUI
! 		    && !gui.in_use
  #endif
! 		    )
! 		noinvcur = TRUE;
  
! 	    /* if inverting in this line set area_highlighting */
! 	    if (fromcol >= 0)
! 	    {
! 		area_highlighting = TRUE;
! 		attr = HL_ATTR(HLF_V);
  #if defined(FEAT_CLIPBOARD) && defined(FEAT_X11)
! 		if ((clip_star.available && !clip_star.owned
! 							 && clip_isautosel_star())
! 			|| (clip_plus.available && !clip_plus.owned
! 							&& clip_isautosel_plus()))
! 		    attr = HL_ATTR(HLF_VNC);
  #endif
+ 	    }
  	}
  
! 	/*
! 	 * handle 'incsearch' and ":s///c" highlighting
! 	 */
! 	else if (highlight_match
! 		&& wp == curwin
! 		&& lnum >= curwin->w_cursor.lnum
! 		&& lnum <= curwin->w_cursor.lnum + search_match_lines)
! 	{
! 	    if (lnum == curwin->w_cursor.lnum)
! 		getvcol(curwin, &(curwin->w_cursor),
! 						 (colnr_T *)&fromcol, NULL, NULL);
! 	    else
! 		fromcol = 0;
! 	    if (lnum == curwin->w_cursor.lnum + search_match_lines)
! 	    {
! 		pos.lnum = lnum;
! 		pos.col = search_match_endcol;
! 		getvcol(curwin, &pos, (colnr_T *)&tocol, NULL, NULL);
! 	    }
! 	    else
! 		tocol = MAXCOL;
! 	    /* do at least one character; happens when past end of line */
! 	    if (fromcol == tocol)
! 		tocol = fromcol + 1;
! 	    area_highlighting = TRUE;
! 	    attr = HL_ATTR(HLF_I);
  	}
      }
  
  #ifdef FEAT_DIFF
***************
*** 3504,3510 ****
      ptr = line;
  
  #ifdef FEAT_SPELL
!     if (has_spell)
      {
  	/* For checking first word with a capital skip white space. */
  	if (cap_col == 0)
--- 3517,3523 ----
      ptr = line;
  
  #ifdef FEAT_SPELL
!     if (has_spell && !number_only)
      {
  	/* For checking first word with a capital skip white space. */
  	if (cap_col == 0)
***************
*** 3564,3570 ****
  	v = wp->w_skipcol;
      else
  	v = wp->w_leftcol;
!     if (v > 0)
      {
  #ifdef FEAT_MBYTE
  	char_u	*prev_ptr = ptr;
--- 3577,3583 ----
  	v = wp->w_skipcol;
      else
  	v = wp->w_leftcol;
!     if (v > 0 && !number_only)
      {
  #ifdef FEAT_MBYTE
  	char_u	*prev_ptr = ptr;
***************
*** 3707,3713 ****
       */
      cur = wp->w_match_head;
      shl_flag = FALSE;
!     while (cur != NULL || shl_flag == FALSE)
      {
  	if (shl_flag == FALSE)
  	{
--- 3720,3726 ----
       */
      cur = wp->w_match_head;
      shl_flag = FALSE;
!     while ((cur != NULL || shl_flag == FALSE) && !number_only)
      {
  	if (shl_flag == FALSE)
  	{
***************
*** 4068,4080 ****
  	    }
  	}
  
! 	/* When still displaying '$' of change command, stop at cursor */
! 	if (dollar_vcol >= 0 && wp == curwin
  		   && lnum == wp->w_cursor.lnum && vcol >= (long)wp->w_virtcol
  #ifdef FEAT_DIFF
  				   && filler_todo <= 0
  #endif
  		)
  	{
  	    screen_line(screen_row, wp->w_wincol, col, -(int)wp->w_width,
  						    HAS_RIGHTLEFT(wp->w_p_rl));
--- 4081,4096 ----
  	    }
  	}
  
! 	// When still displaying '$' of change command, stop at cursor.
! 	// When only displaying the (relative) line number and that's done,
! 	// stop here.
! 	if ((dollar_vcol >= 0 && wp == curwin
  		   && lnum == wp->w_cursor.lnum && vcol >= (long)wp->w_virtcol
  #ifdef FEAT_DIFF
  				   && filler_todo <= 0
  #endif
  		)
+ 		|| (number_only && draw_state > WL_NR))
  	{
  	    screen_line(screen_row, wp->w_wincol, col, -(int)wp->w_width,
  						    HAS_RIGHTLEFT(wp->w_p_rl));
*** ../vim-8.1.0373/src/move.c	2018-09-12 22:27:12.151940716 +0200
--- src/move.c	2018-09-12 23:08:43.721012117 +0200
***************
*** 145,165 ****
  # endif
  	    )
      {
  #ifdef FEAT_SYN_HL
! 	if (!wp->w_p_rnu && wp->w_redr_type <= VALID && last_cursorline != 0)
  	{
! 	    // "last_cursorline" may be set for another window, worst case we
! 	    // redraw too much.  This is optimized for moving the cursor around
! 	    // in the same window.
! 	    redrawWinline(wp, last_cursorline, FALSE);
! 	    redrawWinline(wp, wp->w_cursor.lnum, FALSE);
! 	    redraw_win_later(wp, VALID);
  	}
- 	else
- #endif
- 	    redraw_win_later(wp, SOME_VALID);
- #ifdef FEAT_SYN_HL
- 	last_cursorline = wp->w_cursor.lnum;
  #endif
      }
  }
--- 145,169 ----
  # endif
  	    )
      {
+ 	if (wp->w_p_rnu)
+ 	    // win_line() will redraw the number column only.
+ 	    redraw_win_later(wp, VALID);
  #ifdef FEAT_SYN_HL
! 	if (wp->w_p_cul)
  	{
! 	    if (wp->w_redr_type <= VALID && last_cursorline != 0)
! 	    {
! 		// "last_cursorline" may be set for another window, worst case
! 		// we redraw too much.  This is optimized for moving the cursor
! 		// around in the same window.
! 		redrawWinline(wp, last_cursorline, FALSE);
! 		redrawWinline(wp, wp->w_cursor.lnum, FALSE);
! 		redraw_win_later(wp, VALID);
! 	    }
! 	    else
! 		redraw_win_later(wp, SOME_VALID);
! 	    last_cursorline = wp->w_cursor.lnum;
  	}
  #endif
      }
  }
*** ../vim-8.1.0373/src/version.c	2018-09-12 22:27:12.151940716 +0200
--- src/version.c	2018-09-12 23:06:23.110026307 +0200
***************
*** 796,797 ****
--- 796,799 ----
  {   /* Add new patch number below this line */
+ /**/
+     374,
  /**/

-- 
The 50-50-90 rule: Anytime you have a 50-50 chance of getting
something right, there's a 90% probability you'll get it wrong.

 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///